diff --git a/Modules/ossaudiodev.c b/Modules/ossaudiodev.c
index 40c328c3349..c19f2e0b6fb 100644
--- a/Modules/ossaudiodev.c
+++ b/Modules/ossaudiodev.c
@@ -938,6 +938,9 @@ initossaudiodev(void)
 
     OSSAudioError = PyErr_NewException("ossaudiodev.OSSAudioError", NULL, NULL);
     if (OSSAudioError) {
+	/* Each call to PyModule_AddObject decrefs it; compensate: */
+	Py_INCREF(OSSAudioError);
+	Py_INCREF(OSSAudioError);
         PyModule_AddObject(m, "error", OSSAudioError);
         PyModule_AddObject(m, "OSSAudioError", OSSAudioError);
     }